Martian rock winds back the clock

Almost 10 million years ago, a meteorite crashed into Earth. Hidden inside were 23 microscopic grains which tell the story of how Mars evolved.

Black hole discovered firing jets at neighboring galaxy

With the help of citizen scientists, a team of astronomers has discovered a unique black hole spewing a fiery jet at another galaxy. The black hole is hosted by a galaxy around one billion light years away from Earth named ...

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